How to send variables from javascript to php - Webmaster Forums - Webmaster forum for HTML, PHP, ASP, CSS and more

Cindy Sable · 03-18-2010, 02:23 AM

how to send java script variables to php. There is an username and password in the form of javascript variables.i want to check this username and password from mysql database. For that i need to save this javascript variables to php and then php can communicate with mysql for validation. Untill entering correct password all other fields in the form should be disabled.pls anybody guide me.

Erik_M · 03-20-2010, 01:58 PM

hmm i wonder if something like
JS:
document.getElementByid("password").value = jsVar1;
HTML:
<form method="GET" action="action.php">
<input id="Password" name="password" value="">
...
</form>

PHP:
$phpVar = $_GET["password"]
would work.

JulietMylaOwen · 03-28-2010, 02:48 AM

Thanx for the valuable information

novintabligh · 03-28-2010, 03:49 PM

you can also directly call php file like follow:

<script source="action.php?password=".jsVar1>

PHP:
$phpVar = $_GET["password"]

manzar · 08-05-2010, 02:47 AM

its possible because PHP is parsed server side and Javascript is parsed client side. The PHP is always parsed "before" the page is shown to the client in other words.

PradeepKr · 09-13-2010, 04:14 PM

AJAX can also be used.

smith7868 · 12-24-2010, 01:38 AM

its server side, because PHP can be analyzed and discussed are client-side JavaScript. PHP is always interpreted "before" the page is displayed to the customer in other words.

Maxy28 · 12-28-2010, 02:45 AM

At this point in time the only way to do this is through AJAX. Send a javascript variable to a php page through AJAX, then the php ajax page will use the $_GET['info'] function to get the javascript variable. Then do whatever you want with that new information. This is very good to use when saving info to a database without having to reload.

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